O P O 15 S E R V A T IONS F O R T E M P E IUTU R E . 



35 



The lowest temperatures of the surface of the sea were observed in November, 

 1857, near Melville Bay, and in September, 1858, at Port Kennedy (viz., 28°. 0) ; 

 the highest temperature, north of Davis Strait, in May, 1858, off Svvarte Hook 

 Peninsula (viz., 33°. 5). 



The following table of monthly mean temperatures of the air (in shade), ex- 

 pressed in degrees of Fahrenheit's scale, has been prepared by Captain McClintock, 

 and is here appended as forming part of the most valuable material for the con- 

 struction of the isothermal lines, and for the investigation of the climatic relations 

 of this portion of the Arctic regions. I have added two columns, containing the 

 results from the Second American Grinnell Expedition, under command of Dr. E. 

 K. Kane, from my discussion of the observations, as published by the Smithsonian 

 Institution, and the results for Port Kennedy as made out by me in the preceding 

 discussion. This last column may be substituted for that given by Captain 

 McClintock in his general table. 



